Electrodynamic machine



Sept. 11; 119-23 1,467,339

A. N. SAMMARQN E ELECTRO DYNAMIC MACHINE Filed May 31 1921 2 Sheets-Sheet 1 G, urzwj Patented Sept. 11, 1923.

UNITED STATES PATENT OFFICE.

AMATO N. SAMMARONE, OF CLEVELAND, OHIO.

ELECTEODYNAMIC MACHINE.

Application filed Kay 31, 1921. Serial No. 473,708.

To all whom it may concern:

Be it known that I, AMATO N. SAMMARQNE,

, pole pieces, means for lubricating the armature shaft, means for supporting the commutator brushes and means constituting a supporting base for the structure, all of said parts of such construction as to be readily assembled and maintained in proper relative arrangement without liability of undue vibrations and accidental displacement.

A further object of my invention is to provide an apparatus of this character which is relatively light in weight though of very durable character, and which is noiseless while in operation.

These and other objects are attained by employing a laminated magnet comprising pole pieces; a pressed steel frame comprising interlocking rings, pressed steel bonnets, base members, and bolts and nuts for bolding said parts in secure assembled correlation, means for centralizing an armature shaft, and means for holding commutator brushes and other features, all as hereinafter fully described and specifically set forth in the appended claims.

In the accompanying drawings forming part of this specification, Figure 1 is an end view illustrating an embodiment of my improvements Fig. a a "ver ical sectional taken on me line 5%2 i" and Fig 3 is a cross sectional "view on theline i it indicates a laminated forncjun which fined between cl pi Era a eel 2, harm ly on ardly int m extended annular flan e 5 and an annular recess 6. Fitted within each of these recesses 6 is a pressed steel bonnet or head 7, having a radial flange 8 and a horizontally extended annular flange or rim Q'adapted for centralizing the assembled parts: these bonnet-s being held in fixed relation with the rings 4 by means of bolts 10 and nuts 11, which extend horizontally through the structure. Bolts 10, are also extended through the rings 2 and the magnet 1 forming the laminated pole pieces, whereby said magnet and pole pieces are maintained in rigid and fixed engagement with the rings 2 before the rings 4 are placed. As a means for supporting the device I provide oppositely located pressed steel saddles 12, constituting a base whereby the structure may be maintained on a horizontal plane.

The'bonnets 7 take the place of cast iron hangers which are commonly employed for supporting the bearing boxes for journaling struction, respectively comprise two sections 13 and 14,.the section 13 being pressed outwardly from the face of the bonnet 7 and having an enlarged annular extension 13 and the section 14 having a similar extension 14: and a flanged extension 15, which fits within a recess 7 of the inner face of the bonnet 7, said sections being held together by suitable bolts or rivets as 16, elongated bolts 16 being provided'and employed for holding commutator brushes, not shown, as they do not form art of the present invention. The commutator 17, armature 18 and armature shaft 19, are shown in outline only by dotted lines for the purpose of illustrating the correlation of the shaft with the bearing boxes which have suitable bushings 17 for direct contact with the shaft, but I do not consider it necessary to illustrate the armature and commutator construction in detail, as I .do not claim any special construction of these parts.

It is manifest that the annular horizontally extended flange 9 and the annular recess 6 of the respective bonnets maintain a close joint with the ri 3, whereby a very stable housing struc' *orovic a which automatic -.rmature s and the ri coon e parts obviates vibration and i noiseless while in ope o the stron 1%. r i a. .1. slice-t steel c iJUi'iilQtS, the

housing is not only very durable, but also comparatively light in Weight, and it is readil adaptable for disassembling when desira 1e without necessity of disassembling the laminated magnet and pole pieces. It is especially noteworthy that the bonnets 7 are formed of pressed sheet steel by means of dies whereby the flanges 9 are absolutely uniform for the purpose of perfectly and automatically centralizing the components of the casing when assembled, while at the same time providin eflicient means for stiffening and stabilizing the structure,

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

1. In housing for electrodynamic machines, inner rings which are l..-shapeol in cross section and adapted for clampingly engaging a laminated field, and outer rin s which are L-shaped in cross section, said last named rings in interlocked en agement over said first named rings, an bonnets having annular flanges for engaging the last named rings, and means for fastening said elements together.

2. In a housing for electrodynamic machines, inner rings which are L-shaped in cross section and adapted for clampingly aneaeae enga ing a laminated field, and outer rim 5 Whic are lL-shaped in cross section, said last named rings losing in interlocked engagement with said first named rings and respectively having an annular recess, and bonnets having outwardly extending annular flanges for engaging said recesses and inwardly extending annular fiangestfor extension through said outer rings, and means for fastening said elements together.

3. In a housing for electrodynamicvmachines, inner rings which are L-shaped in cross section and adapted for clampingly engaginga laminated field, and outer rings which are L-shaped in cross section, said last named rings bein in interlocked engagement around said rst named rings and respectively having an annular recess,,and honnets having outwardly extending annular flanges for engaging said recesses and inwardly extending annular flanges for extension through said outer rings, said bonnets having means forjournaling an armature shaft.

'Si ned at city of New York in the county of ew York and State of New York this 4 day of April A. D. 1921.

AMA'ro N. SAMMARONE. 

